There are several good blogs about this subject (like this one), and I never paid much attention to Java and licensing. Until one of our customers became a bit frightend after Oracle approached them with the question if they were really license compliant using Java.

The customer is using Firefox, 3.5 in this case, and Internet Explorer (6!). Suddenly the application does not work anymore for a lot of clients, as a matter of fact, the firefox-users.
They had upgraded their Firefox to 3.6., and got the message that an add-on must me installed ( appears to be the JRE ) . After installing this, it still does not work.

Why is it that java is crossing my path so much now and then...
After a restore of a database on another node, including renaming him/her, java classes were invalid.
Trying to create / replace them, errors popped up:
ORA-29516: Aurora assertion failure: Assertion failure at eox.c:317
Uncaught exception Root of all Java exceptions:
java.lang.NullPointerException

In OAS (10.1.2.0.2), webforms, when using a left-handed mouse to expand a menu, the tree node is not expanding. No error is given.
For example, in ‘Material Workbench’ select the ‘+’ to expand ‘Organizations’ in the menu.
Left and right button does not do anything.
Also, the left handed users are having difficulties […]

There are several ways to create PDF's, on the client (e.g. PDFCreator) or on the middletier.
But to create PDF's merely with packages in the database, that's another story. Even Apex uses some Java on the middletier.
The product PLPDF on the other hand is a well known utility which provides this functionality (using open-source 'itext'), but.. you have to pay for this.
So why not do it ourselves with itext, open-source (answer: a lot of work and knowledge of Java...).

A project is using Sferyx in Webforms, and the file HTMLEditorLight.jar is used. But 'copy and paste' from outside the form to the editor is not working. Cause: the jar-file need to be signed. To sign a jar-file the tools 'keytool' and 'jarsigner' is needed. But... why not use a script from e.g. webutil: sign_webutil.sh? With a few adjustments it's a quite common, usable script.

Problem: when running form modules using Internet Explorer and JInitiator 1.3.1.x, the browser window opens and crashes immediately before the applet starts. When using Mozilla Firefox, there’s no problem at all.

Several notes on Metalink about this: 602001.1, 430359.1, 550301.1
The issue does not occur when using Sun JRE version 1.4, […]

Event Details

"DOAG 2018 Conference + Exhibition will be held November 20 - 23, 2018 in Nuremberg. Participants will have the opportunity to attend a three-day lecture program with more than 400 talks and

Event Details

“DOAG 2018 Conference + Exhibition will be held November 20 – 23, 2018 in Nuremberg. Participants will have the opportunity to attend a three-day lecture program with more than 400 talks and international top speakers, plus a wide choice of workshops and community activities. This is a great opportunity to expand your knowledge and benefit from the know-how of the Oracle community”